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BBC在线收听下载:朝鲜称氢弹试验成功

2016-01-10来源:BBC

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词汇讲解：

1. magnitude n.量级; 巨大，广大
例句：I had not realized the magnitude of the problem.
我没意识到这个问题的重要性。

2. previous adj.以前的; 先前的; 过早的
例句：Our hopes stem from our previous achievements.
我们的希望源于我们从前的成就。

3. disrupt vt.破坏; 使混乱; 使分裂
例句：I hope their disrupt friendship will be renewed.
我希望他们中断的友谊会继续起来。

4. tighten vt.收紧; （使）变紧
例句：Will you tighten this screw ; it' s very loose.
你把这个螺丝拧紧好吗，它太松了。

5. challenge n.挑战; 质疑; 盘问
例句：He has flung down a challenge to his political rivals.
他已向其政敌提出挑战。

6. impose vt.强加; 征税; 以…欺骗
例句：I don't want to impose on you by staying too long.
我不想打扰你,不多耽搁了。